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[mips] v4i8 and v2i16 add, sub and mul instruction selection patterns.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179420 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Akira Hatanaka 2013-04-12 22:14:24 +00:00
parent 0fda0f3976
commit 9367b8d4f2
3 changed files with 121 additions and 12 deletions
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26
lib/Target/Mips/MipsDSPInstrInfo.td
View File

@ -515,27 +515,27 @@ class INSV_DESC_BASE<string instr_asm, SDPatternOperator OpNode,
//===----------------------------------------------------------------------===//
// Addition/subtraction
class ADDU_QB_DESC : ADDU_QB_DESC_BASE<"addu.qb", int_mips_addu_qb, NoItinerary,
class ADDU_QB_DESC : ADDU_QB_DESC_BASE<"addu.qb", null_frag, NoItinerary,
DSPRegs, DSPRegs>, IsCommutable;
class ADDU_S_QB_DESC : ADDU_QB_DESC_BASE<"addu_s.qb", int_mips_addu_s_qb,
NoItinerary, DSPRegs, DSPRegs>,
IsCommutable;
class SUBU_QB_DESC : ADDU_QB_DESC_BASE<"subu.qb", int_mips_subu_qb, NoItinerary,
class SUBU_QB_DESC : ADDU_QB_DESC_BASE<"subu.qb", null_frag, NoItinerary,
DSPRegs, DSPRegs>;
class SUBU_S_QB_DESC : ADDU_QB_DESC_BASE<"subu_s.qb", int_mips_subu_s_qb,
NoItinerary, DSPRegs, DSPRegs>;
class ADDQ_PH_DESC : ADDU_QB_DESC_BASE<"addq.ph", int_mips_addq_ph, NoItinerary,
class ADDQ_PH_DESC : ADDU_QB_DESC_BASE<"addq.ph", null_frag, NoItinerary,
DSPRegs, DSPRegs>, IsCommutable;
class ADDQ_S_PH_DESC : ADDU_QB_DESC_BASE<"addq_s.ph", int_mips_addq_s_ph,
NoItinerary, DSPRegs, DSPRegs>,
IsCommutable;
class SUBQ_PH_DESC : ADDU_QB_DESC_BASE<"subq.ph", int_mips_subq_ph, NoItinerary,
class SUBQ_PH_DESC : ADDU_QB_DESC_BASE<"subq.ph", null_frag, NoItinerary,
DSPRegs, DSPRegs>;
class SUBQ_S_PH_DESC : ADDU_QB_DESC_BASE<"subq_s.ph", int_mips_subq_s_ph,
@ -951,7 +951,7 @@ class ABSQ_S_QB_DESC : ABSQ_S_PH_R2_DESC_BASE<"absq_s.qb", int_mips_absq_s_qb,
NoItinerary, DSPRegs>;
// Multiplication
class MUL_PH_DESC : ADDUH_QB_DESC_BASE<"mul.ph", int_mips_mul_ph, NoItinerary,
class MUL_PH_DESC : ADDUH_QB_DESC_BASE<"mul.ph", null_frag, NoItinerary,
DSPRegs>, IsCommutable;
class MUL_S_PH_DESC : ADDUH_QB_DESC_BASE<"mul_s.ph", int_mips_mul_s_ph,
@ -1232,6 +1232,22 @@ def : DSPPat<(store (v2i16 DSPRegs:$val), addr:$a),
def : DSPPat<(store (v4i8 DSPRegs:$val), addr:$a),
(SW (COPY_TO_REGCLASS DSPRegs:$val, CPURegs), addr:$a)>;
// Binary operations.
class DSPBinPat<Instruction Inst, ValueType ValTy, SDPatternOperator Node,
Predicate Pred = HasDSP> :
DSPPat<(Node ValTy:$a, ValTy:$b), (Inst ValTy:$a, ValTy:$b), Pred>;
def : DSPBinPat<ADDQ_PH, v2i16, int_mips_addq_ph>;
def : DSPBinPat<ADDQ_PH, v2i16, add>;
def : DSPBinPat<SUBQ_PH, v2i16, int_mips_subq_ph>;
def : DSPBinPat<SUBQ_PH, v2i16, sub>;
def : DSPBinPat<MUL_PH, v2i16, int_mips_mul_ph, HasDSPR2>;
def : DSPBinPat<MUL_PH, v2i16, mul, HasDSPR2>;
def : DSPBinPat<ADDU_QB, v4i8, int_mips_addu_qb>;
def : DSPBinPat<ADDU_QB, v4i8, add>;
def : DSPBinPat<SUBU_QB, v4i8, int_mips_subu_qb>;
def : DSPBinPat<SUBU_QB, v4i8, sub>;
// Extr patterns.
class EXTR_W_TY1_R2_Pat<SDPatternOperator OpNode, Instruction Instr> :
DSPPat<(i32 (OpNode CPURegs:$rs, ACRegsDSP:$ac)),

5
lib/Target/Mips/MipsSEISelLowering.cpp
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@ -45,12 +45,17 @@ MipsSETargetLowering::MipsSETargetLowering(MipsTargetMachine &TM)
for (unsigned Opc = 0; Opc < ISD::BUILTIN_OP_END; ++Opc)
setOperationAction(Opc, VecTys[i], Expand);
setOperationAction(ISD::ADD, VecTys[i], Legal);
setOperationAction(ISD::SUB, VecTys[i], Legal);
setOperationAction(ISD::LOAD, VecTys[i], Legal);
setOperationAction(ISD::STORE, VecTys[i], Legal);
setOperationAction(ISD::BITCAST, VecTys[i], Legal);
}
}
if (Subtarget->hasDSPR2())
setOperationAction(ISD::MUL, MVT::v2i16, Legal);
if (!TM.Options.UseSoftFloat) {
addRegisterClass(MVT::f32, &Mips::FGR32RegClass);

102
test/CodeGen/Mips/dsp-patterns.ll
View File

@ -1,7 +1,8 @@
; RUN: llc -march=mips -mattr=dsp < %s | FileCheck %s
; RUN: llc -march=mips -mattr=dsp < %s | FileCheck %s -check-prefix=R1
; RUN: llc -march=mips -mattr=dspr2 < %s | FileCheck %s -check-prefix=R2
; CHECK: test_lbux:
; CHECK: lbux ${{[0-9]+}}
; R1: test_lbux:
; R1: lbux ${{[0-9]+}}
define zeroext i8 @test_lbux(i8* nocapture %b, i32 %i) {
entry:
@ -10,8 +11,8 @@ entry:
ret i8 %0
}
; CHECK: test_lhx:
; CHECK: lhx ${{[0-9]+}}
; R1: test_lhx:
; R1: lhx ${{[0-9]+}}
define signext i16 @test_lhx(i16* nocapture %b, i32 %i) {
entry:
@ -20,8 +21,8 @@ entry:
ret i16 %0
}
; CHECK: test_lwx:
; CHECK: lwx ${{[0-9]+}}
; R1: test_lwx:
; R1: lwx ${{[0-9]+}}
define i32 @test_lwx(i32* nocapture %b, i32 %i) {
entry:
@ -29,3 +30,90 @@ entry:
%0 = load i32* %add.ptr, align 4
ret i32 %0
}
; R1: test_add_v2q15_:
; R1: addq.ph ${{[0-9]+}}
define { i32 } @test_add_v2q15_(i32 %a.coerce, i32 %b.coerce) {
entry:
%0 = bitcast i32 %a.coerce to <2 x i16>
%1 = bitcast i32 %b.coerce to <2 x i16>
%add = add <2 x i16> %0, %1
%2 = bitcast <2 x i16> %add to i32
%.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
ret { i32 } %.fca.0.insert
}
; R1: test_sub_v2q15_:
; R1: subq.ph ${{[0-9]+}}
define { i32 } @test_sub_v2q15_(i32 %a.coerce, i32 %b.coerce) {
entry:
%0 = bitcast i32 %a.coerce to <2 x i16>
%1 = bitcast i32 %b.coerce to <2 x i16>
%sub = sub <2 x i16> %0, %1
%2 = bitcast <2 x i16> %sub to i32
%.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
ret { i32 } %.fca.0.insert
}
; R2: test_mul_v2q15_:
; R2: mul.ph ${{[0-9]+}}
; mul.ph is an R2 instruction. Check that multiply node gets expanded.
; R1: test_mul_v2q15_:
; R1: mul ${{[0-9]+}}
; R1: mul ${{[0-9]+}}
define { i32 } @test_mul_v2q15_(i32 %a.coerce, i32 %b.coerce) {
entry:
%0 = bitcast i32 %a.coerce to <2 x i16>
%1 = bitcast i32 %b.coerce to <2 x i16>
%mul = mul <2 x i16> %0, %1
%2 = bitcast <2 x i16> %mul to i32
%.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
ret { i32 } %.fca.0.insert
}
; R1: test_add_v4i8_:
; R1: addu.qb ${{[0-9]+}}
define { i32 } @test_add_v4i8_(i32 %a.coerce, i32 %b.coerce) {
entry:
%0 = bitcast i32 %a.coerce to <4 x i8>
%1 = bitcast i32 %b.coerce to <4 x i8>
%add = add <4 x i8> %0, %1
%2 = bitcast <4 x i8> %add to i32
%.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
ret { i32 } %.fca.0.insert
}
; R1: test_sub_v4i8_:
; R1: subu.qb ${{[0-9]+}}
define { i32 } @test_sub_v4i8_(i32 %a.coerce, i32 %b.coerce) {
entry:
%0 = bitcast i32 %a.coerce to <4 x i8>
%1 = bitcast i32 %b.coerce to <4 x i8>
%sub = sub <4 x i8> %0, %1
%2 = bitcast <4 x i8> %sub to i32
%.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
ret { i32 } %.fca.0.insert
}
; DSP-ASE doesn't have a v4i8 multiply instruction. Check that multiply node gets expanded.
; R2: test_mul_v4i8_:
; R2: mul ${{[0-9]+}}
; R2: mul ${{[0-9]+}}
; R2: mul ${{[0-9]+}}
; R2: mul ${{[0-9]+}}
define { i32 } @test_mul_v4i8_(i32 %a.coerce, i32 %b.coerce) {
entry:
%0 = bitcast i32 %a.coerce to <4 x i8>
%1 = bitcast i32 %b.coerce to <4 x i8>
%mul = mul <4 x i8> %0, %1
%2 = bitcast <4 x i8> %mul to i32
%.fca.0.insert = insertvalue { i32 } undef, i32 %2, 0
ret { i32 } %.fca.0.insert
}